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Mixed Quiz
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1

If an Ethernet destination address is 08-07-06-05-44-33, then this is a ______ address.
A)Broadcast
B)Unicast
C)Multicast
D)Any of the above
2

What is the hexadecimal equivalent of the Ethernet address 01011010 00010001 01010101 00011000 10101010 00001111?
A)5A-11-55-18-AA-0F
B)5A-88-AA-18-55-F0
C)5A-81-BA-81-AA-0F
D)5A-18-5A-18-55-0F
3

Which of the following could not be an Ethernet source address?
A)8A-7B-6C-DE-10-00
B)8B-32-21-21-4D-34
C)EE-AA-C1-23-45-32
D)46-56-21-1A-DE-F4
4

What is the efficiency of 4B/5B block encoding?
A)60 percent
B)80 percent
C)20 percent
D)40 percent
5

Which of the following could not be an Ethernet unicast destination?
A)44-AA-C1-23-45-32
B)46-56-21-1A-DE-F4
C)48-32-21-21-4D-34
D)43-7B-6C-DE-10-00
6

What is the efficiency of 8B/10B encoding?
A)80 percent
B)20 percent
C)40 percent
D)60 percent
7

A 10-station Ethernet LAN uses a _______-port bridge if the effective average data rate for each station is 2 Mbps.
A)10
B)1
C)2
D)5
8

A _______-station Ethernet LAN uses a four-port bridge. Each station has an effective average data rate of 1.25 Mbps.
A)160
B)80
C)40
D)32
9

An 80-station traditional Ethernet is divided into four collision domains. This means that a maximum of _______ stations contend for medium access at any one time.
A)20
B)76
C)80
D)320
10

If an Ethernet destination address is 07-01-02-03-04-05, then this is a ______ address.
A)Unicast
B)Broadcast
C)Multicast
D)Any of the above
11

What is the efficiency of a frame in half-duplex Gigabit Ethernet carrying 46 bytes of data?
A)97 percent
B)70 percent
C)56 percent
D)12 percent
12

Which of the following could not be an Ethernet multicast destination?
A)B7-7B-6C-DE-10-00
B)7C-56-21-1A-DE-F4
C)7B-AA-C1-23-45-32
D)83-32-21-21-4D-34
13

Which of the following is a four-wire Gigabit Ethernet implementation?
A)1000Base-SX
B)1000Base-LX
C)1000Base-T
D)1000Base-CX
14

Forty stations are on an Ethernet LAN. A 10-port bridge segments the LAN. What is the effective average data rate of each station?
A)1.0 Mbps
B)2.5 Mbps
C)2.0 Mbps
D)5.0 Mbps







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